Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

Reply
 
Thread Tools Display Modes
  #1  
Old 10-12-2012, 11:07 AM
Nappy Nappy is offline
Registered User
Location: SF Bay Area
 
Join Date: Dec 2007
Posts: 9
Mein Auto: '98 528
HVAC Issue, need ideas where to start

'98 528i

The temp control wheel between the center vents. When turned all the way to the cold position, air flows, no issues. When turned all the way to the warm position, no air flows even when the fan speed is turned all the way up.

I recall once, driving with the AC on, I noticed I wasn't getting cold air coming from the center vents. All of a sudden, I hear a very subtle clunk,pop,thud and then I get a rush of cold air coming from the center vents.

Would this be a "flapper" motor issue or something else??

Looking for ideas of where to start trouble shooting.

Thanks in advance!!
__________________
Past Bimmers:
'95 e36 M3, Dakar Yellow
'91 e30 M3, Alpine White

Current Rides:
'98 528i, Alpine White, Sport Package
'03 Stage III Audi allroad (~350WHP)
Reply With Quote
Advertisement
  #2  
Old 10-12-2012, 11:30 AM
edjack edjack is offline
Officially Welcomed to the 'Fest
Location: San Jose, CA
 
Join Date: May 2007
Posts: 9,319
Mein Auto: '97 540i 6 speed
The center wheel is entirely mechanical. If you get a normal cold air flow, but not hot, the cable is either slipped or broken. I've not had mine apart, but you can lever out the center vent. Search here for more info.
__________________


Ed in San Jose '97 540i 6 speed aspensilber over aubergine leather. Build date 3/97. Golden Gate Chapter BMW CCA Nr 62319.
Reply With Quote
  #3  
Old 10-17-2012, 01:00 AM
bluebee's Avatar
bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 21,297
Mein Auto: 02 BMW 525i M54 auto 130K
I'd start by typing /HVAC F3 in the bestlinks...

For example ...
- How to remove the IHKA air conditioning control panel to clean the circuit board (1) (2) (3) (4) & an HVAC (IHKA) sampling fan check - a cn90 15 min DIY project! (1) & how to remove the trim and bracket holding the MID & HVAC/IHKA panels (1) (2)
__________________
Please read the suggested threads, where the best always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



Forum Jump


All times are GMT -7. The time now is 03:19 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms